Sapphire Plunger Back Catalog number: CTS-10319 Manufacturer: SCIENCIX Availability: 3 weeks Price on request - + Recommended 11-2642 Needle Port Seal, AS-100, ASI-100T Price on request CTS-10984 Sparge Diffuser Price on request 11-2587 Piston Seal Wash Seal/Priming Valve Seal Price on request